ADS7958SDBT

Analog To Digital Converters (ADC) Overview

The ADS7958SDBT is a Texas Instruments analog-to-digital converter featuring an 8-bit resolution and a sampling rate of 1 MSPS. It provides four single-ended input channels within a 30-pin TSSOP package. The device utilizes a successive approximation register (SAR) architecture with an external reference type. It operates on an analog supply voltage ranging from 2.7 V to 5.25 V and a digital supply voltage from 1.7 V to 5.25 V. Key performance metrics include a signal-to-noise ratio of 49 dB, differential nonlinearity of 0.3 LSB, and integral nonlinearity of 0.3 LSB. The component supports SPI interface communication and functions within a temperature range of -40°C to +125°C.

Analog To Digital Converters (ADC) Feature Summary

• Supports high-speed data acquisition at 1 MSPS with low power consumption.
• Features pin-compatible variants across 8, 10, and 12-bit resolutions for flexible design scaling.
• Enables direct connection to microcontrollers via standard serial peripheral interface.
• Operates effectively in industrial environments with extended temperature ratings.

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring multi-channel monitoring
• Portable instrumentation devices needing low-power operation
• Data acquisition modules for sensor interfacing
• Automotive electronic testing equipment

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix designation to confirm the exact bit-resolution variant, as the ADS7958 family includes multiple pin-compatible options. Ensure the selected part matches the required channel count and resolution for the target application. Confirm that the external reference voltage aligns with the system requirements before finalizing procurement orders.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a balance between moderate resolution and high throughput is required for single-ended signals. Consider the pin-compatible nature of the series if future upgrades to higher bit-depths are anticipated without changing the PCB layout. Evaluate the power supply constraints to ensure compatibility with the specified voltage ranges for both analog and digital domains.

Analog To Digital Converters (ADC) Part Context

This device belongs to the ADS79xx family of microPower SAR ADCs designed by Texas Instruments. The family emphasizes flexibility through pin-compatible designs that allow designers to scale resolution and channel counts easily. These converters are engineered for applications demanding efficient space utilization and reliable performance in harsh operating conditions.

Analog To Digital Converters (ADC) Replacement Considerations

Direct substitutes within the same family include other ADS7958 variants with different suffixes indicating distinct resolution or channel configurations. Cross-family replacements may require significant schematic and layout modifications due to differing pinouts and electrical characteristics.